Steam-shovel.



No. "5,470 Patented Dec. 9. i902.

F. FRANZ.

STEAM sHovE L. lApplrntinn filed Oct. 2l, 1901A 2 sheets-shed l.

(No Model.)

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Patented nec. 9, 1902. F. FRANZ.

-STEAM SHDVEL.

Appue'acion mea our. 21. 1901.1

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UNITED STATES PATENT OEEICE.

EEANKERANZ, or WALLACE, iDAno.

STEAM-SHOVEL.

SPECIFICATION forming' part of Letters Patent No. 715,470, datedDecember 9, 1902.

Application filed October 21, 1901. Serial No. 79,410. (No model.)

To all whom, t may concern,.-

Beit known that I, FRANK FRANZ, a citizen 'of the United States, and aresident of Uvallace, in the county of Shoshone and State of Idaho, haveinvented a new and Improved Steam-Shovel, of which the following is afull, clear, and exact description.

This invention relates to a machineV for shoveling and conveying earth,rock, and like substances; and it comprises certain novel mechanism,which will be hereinafter fully described.

This specification is a specific description of one form of theinvention, While the claims are definitions of the actual scope thereof.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the views.

Figure 1 is a side view of the device. Fig. 2 is a plan view thereof.Fig. 3 is a section on the line 3 3 of Fig. 4, and Fig. 4 is `an enlarged plan view of the invention.

The machine has a hed a, mounted, preferably, on wheels a', so that itmay be conveniently moved from point to point. On the bed a is erected ascaffold a2, from the base of which projects a branch a3, these partsCL2 and as being connected at their upper ends by bars a4. The branch a3of the scaffold o2 has a boom b, pivoted thereinat the point b". Theinner end of the boom b is forked to receive loosely a horizontalcross-head b2. This cross-head is fitted to move vertically in a scaiolda5, mounted on the bed o. The scaffold a? is pivoted on the bed by meansof a pin n.5. (Shown in Fig. 3.) Now owing to the arrangement of theparts a2, b, h2, and a5, as

described, the boom b may move in a vertical plane around its pivot b',and it may also swing in a horizontal plane around the pin d6. As thehoorn swings horizontally it slides on the cross-head b2, and as itmoves vertically it raises and lowers the cross-head in the scaffold a5.

b3 indicates ropes connected to the crosshead b2 and wound over a drumb5, so that by turning the drum in one direction or the other thecross-head, and hence the boom, may be raised or lowered.

b indicates a gearing for connecting the drum to the engine, and b"indicates a frictionclutch for starting and stopping the movement of thegearing. Thus by driving the drum h5 in the direction desired thenecessary vertical adjustments of the boom may be effected. l

On the boom b, at the outer part thereof, is a guide-bar b4, which'maybe of any suitable form and which runs longitudinally along the underside of the boom and is slidably connected to an eye c' on the shovel c.By these means the shovel is mounted to travel back and forth along theboom from its outer end to the scaold.

d indicates an engine of any sort desired, which is mounted on the rearpart of the bed and provided with a friction-gearing d', by means ofwhich two drums e and j' may be driven at will in either direction.

VI will not describe the details of the friction-gear d', since thisforms no part of my invention. Any suitable mechanism may be employedfor the purpose so long as this mechanism will impart theabove-described movements to the drums e andf. These drums e andfaremounted on the bed a on transverse axes. The drum ecarries,as best shownin Fig. 1, `two ropes e and e1". These ropes are wound oppositely on thedrum. The rope e runs over gide-rollers e3 to the outer end of the boom,where it passes around a guide roller or sheave e4 and runs inward tothe shovel c, so that by winding up the rope e the shovel is drawnoutward along the boom.

The rope e2 passes over guide-rollers e5 directly to the shovel c, sothat by windin g on the -rope e2 the shovel may be dumped. The rope ,e2is connected to the upper part of the shovel, -so as to effect lthisdumping. `served that when one of the ropes e or e2 is It will beobwound on the drum e the other rope will be unwound. The drum f carriestwo ropes f, which pass over guide-rollers f2 at each side of thescaffold o2 and are connected, to' the lower part of the shovel, so thatby winding up the ropes f the shovel will be drawn toward the machine.

Mounted on the bed and running from the base of the scaffold a2 upwardand rearward thereon is the frame g of a conveyer g'. This conveyer maybe any ordinary form of endless conveyer and runs over pulleys q2 and g3at the respective ends of the frame g, the pul- IOO ley g8 being drivenfrom the motor CZ by a belt cl2 or other suitable connection. At thelower or receiving end of the conveyer is a boot g4, up which the shovelc runs to dump its load 5 onto the conveyer. The conveyer discharges itsload at its rear or high end, and a car or other receptacle for thematerial may be run under the conveyer, as indicated at i.

Suitable brace ropes or rods 7c are provided, xo these ropes or rodspassing from the upper end of the elevator-frame g to the scaffold a2and connected centrally thereto, so as to permit turning of the scaffoldas desired.

Z indicates a rope or chain connected to the l 5 base of the scaffold0,2 and passed over pulleys Z on the bed a. This rope or chain alsopasses over a capstan Z2, so that it may be actuated to turn thescaffold, and consequently the boom, as may be desired.

In the operation of the apparatus the gearing d is so actuated as todrive the drums' e and f, so that the shovel may be drawn back and forthalong the boom. As the shovel, with its load, nears the bed of themachine it rides up on the boot g4, and then the movement of the shovelshould be stopped and the rope e2 drawn to dump the shovel. Then bydrawing on the rope e the shovel may be returned for another load andits operation 3o thus continued. Meanwhile the conveyer g is operatingcontinuously to carry up the material and dump it from the high end ofthe conveyer, as Will be understood.

Various changes in the form, proportions, and minor details of myinvention may be resorted to without departing from the spirit and scopeof my invention. Hence I consider myself entitled to all such variationsas may lie within the scope of my claims.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- 1. The combination of a frame, a conveyer thereon, aboot at the base of the conveyer, sa'id boot slanting upward from theground, a shovel, means for moving the shovel toward and from the boot,and a boom mounted on the frame above the boot, on which boom the shovelhas sliding movement.

2. The combination of a frame,a conveyer thereon, a boot at the base ofthe conveyer, said boot slanting upward from the ground, a shovel, meansfor moving the shovel toward and from the boot, a boom mounted on theframe above the boot, and a guide rod or bar on the boom, on which rodor bar the shovel is slidably mounted.

3. The combination of a frame, a scaffold mounted to turn thereon on avertical axis, a 6o boom pivoted intermediate its ends on the scaffoldto swing vertically, avertically-movable cross-head mounted on the frameand with which the boom has sliding connection, and a shovel mounted onthe boom.

4. The combination of a frame, a scaold mounted to turn thereon, a boompivoted intermediate its ends on the scaold, a crosshead mounted to movevertically, the crosshead lying essentially parallel to the pivot of theboom, and one end of the boom having connection with the cross-head toslide along the same, and an excavating device mounted on the other endportion of the boom.

5. The combination of a frame, a scaffold mounted to turn thereon, aboom pivotally mounted on the scaffold intermediate the ends of theboom, the boom swinging vertically, a vertically-movablecross-headmounted on the frame and with which the boom has sliding connection,means for moving and adjustably holding the cross-head, and anexcavating device Working on the boom.

6. The combination of a frame, a scaffold mounted to turn thereon, aboom pivotally mounted on the scaffold intermediate the ends of theboom, the boomswinging vertically, a vertically-movable crossheadmounted on the frame and with which the boom has sliding connection,means for moving and adjustably holding the cross-head, and anexcavating device Working on the boom, the said means for moving andadjustably holding the cross-head comprising ropes connected to oppositesides thereof, and a Winding device for alternately drawing on theropes.

7. The combination of a frame, a boom mounted intermediate its ends toswing around either of two crossing axes, a crosshead mounted to movetransversely of itself and lying approximately parallel to one of saidaxes of the boom, one end of the boom being engaged with the cross-headto slide longitudinally thereof, and excavating devices coacting withthe boom.

8. An excavating apparatus comprisinga frame, a motor arranged adjacentto one end thereof, haul mechanism located adjacent to the motor, aconveyer passing at an inclination upward from the base of the frame andover the haul mechanism and motor, a boom mounted on the frame adjacentto the receiving end of the conveyer, a shovel carried on the boom, andconnections between the shovel and the haul device.

9. An excavating apparatus having a fram e, a booln mounted thereon, abar carried by the boom longitudinally thereof, a shovel having an eyepermanently fastened thereon and ICO IIO

slidably receiving the bar, and haul devices FRANK FRANZ.

Witnesses:

H. M. DAVENPORT, JOHN P. SHEEHY.

